Sine Masumoto

About Sine Masumoto

At the heart of DC Talk Therapy is our amazing administrative team of Sine Masumoto and Amy Brezee.

Sine joined DC Talk Therapy in 2023 and oversees the practice’s administrative department. They handle all of the billing and insurance-related issues, including determining client benefits and any follow-up correspondence in case of denials.

Sine is also responsible for the practice’s social media presence and promotional materials.

A native of Arlington County, Sine graduated from Virginia Commonwealth University with a double major in business management and cultural anthropology.

Prior to joining DC Talk Therapy, Sine worked in customer service, office administration, and digital marketing.

Sine Masumoto can be reached at 202-588-1288 or at Their regular hours are 9 am-5 pm, Monday through Friday.

We are here to help.

Make an Appointment

Woodley Park Offices
3000 Connecticut Ave., NW
Suite 438
Washington, DC 20008

Call/Text: (202) 588-1288